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Title: Spinor condensates with a laser-induced quadratic Zeeman effect

Abstract

We show that an effective quadratic Zeeman effect for trapped atoms can be generated by proper laser configurations and, in particular, by the dipole trap itself. The induced quadratic Zeeman effect leads to a rich ground-state phase diagram, e.g., for a degenerate {sup 52}Cr gas, can be used to induce topological defects by controllably quenching across transitions between phases of different symmetries, allows for the observability of the Einstein-de Haas effect for relatively large magnetic fields, and may be employed to create S=1/2 systems with spinor dynamics. Similar ideas could be explored in other atomic species opening an exciting new control tool in spinor systems.

Authors:
 [1]; ; ;  [2]
  1. Institut fuer Theoretische Physik, Leibniz Universitaet Hannover, Appelstr. 2, D-30167 Hannover (Germany)
  2. 5. Physikalisches Institut, Universitaet Stuttgart, Pfaffenwaldring 57 V, D-70550 Stuttgart (Germany)
Publication Date:
OSTI Identifier:
20982566
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.75.053606; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; BOSE-EINSTEIN CONDENSATION; CHROMIUM 52; CONDENSATES; CONFIGURATION; DEFECTS; DIPOLES; GROUND STATES; LASER RADIATION; MAGNETIC FIELDS; PHASE DIAGRAMS; PHOTON-ATOM COLLISIONS; QUENCHING; SYMMETRY; TRAPPING; TRAPS; ZEEMAN EFFECT

Citation Formats

Santos, L., Fattori, M., Stuhler, J., and Pfau, T. Spinor condensates with a laser-induced quadratic Zeeman effect. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.053606.
Santos, L., Fattori, M., Stuhler, J., & Pfau, T. Spinor condensates with a laser-induced quadratic Zeeman effect. United States. doi:10.1103/PHYSREVA.75.053606.
Santos, L., Fattori, M., Stuhler, J., and Pfau, T. Tue . "Spinor condensates with a laser-induced quadratic Zeeman effect". United States. doi:10.1103/PHYSREVA.75.053606.
@article{osti_20982566,
title = {Spinor condensates with a laser-induced quadratic Zeeman effect},
author = {Santos, L. and Fattori, M. and Stuhler, J. and Pfau, T.},
abstractNote = {We show that an effective quadratic Zeeman effect for trapped atoms can be generated by proper laser configurations and, in particular, by the dipole trap itself. The induced quadratic Zeeman effect leads to a rich ground-state phase diagram, e.g., for a degenerate {sup 52}Cr gas, can be used to induce topological defects by controllably quenching across transitions between phases of different symmetries, allows for the observability of the Einstein-de Haas effect for relatively large magnetic fields, and may be employed to create S=1/2 systems with spinor dynamics. Similar ideas could be explored in other atomic species opening an exciting new control tool in spinor systems.},
doi = {10.1103/PHYSREVA.75.053606},
journal = {Physical Review. A},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}